278 citations · 502 across the 5 of their papers we have counts for
5 papers
Band geometry, Berry curvature and superfluid weight
Long Liang, Tuomas I. Vanhala, Sebastiano Peotta +3
We present a theory of the superfluid weight in multiband attractive Hubbard models within the Bardeen-Cooper-Schrieffer (BCS) mean field framework. We show how to separate the geo…
Effective theory and emergent symmetry in the flat bands of attractive Hubbard models
Murad Tovmasyan, Sebastiano Peotta, Päivi Törmä +1
In a partially filled flat Bloch band electrons do not have a well defined Fermi surface and hence the low-energy theory is not a Fermi liquid. Neverethless, under the influence of…
Edge binding of sine-Gordon solitons in spin-orbit coupled Bose-Einstein condensates
Sebastiano Peotta, Francisco Mireles, Massimiliano Di Ventra
In recent experiments with ultracold gases a Raman coupling scheme is used to produce both spin-orbit (SO) and Zeeman-type couplings [Y.-J. Lin et al., Nature 471, 83 (2011)]. Thei…
Phase-induced transport in atomic gases: from superfluid to Mott insulator
Sebastiano Peotta, Chih-Chun Chien, Massimiliano Di Ventra
Recent experimental realizations of artificial gauge fields for cold atoms are promising for generating steady states carrying a mass current in strongly correlated systems, such a…
Quantum Breathing of an Impurity in a One-dimensional Bath of Interacting Bosons
Sebastiano Peotta, Davide Rossini, Marco Polini +2
By means of time-dependent density-matrix renormalization-group (TDMRG) we are able to follow the real-time dynamics of a single impurity embedded in a one-dimensional bath of inte…